Commit 788e05b2 authored by Johannes Pfeifer's avatar Johannes Pfeifer
Browse files

smoother2histval: add test case for correctness

parent 1bb56124
......@@ -385,6 +385,7 @@ MODFILES = \
smoother2histval/fs2000_simul.mod \
smoother2histval/fs2000_smooth.mod \
smoother2histval/fs2000_smooth_stoch_simul.mod \
smoother2histval/fs2000_smooth_ML.mod \
optimizers/fs2000_1.mod \
optimizers/fs2000_2.mod \
optimizers/fs2000_3.mod \
......
// Test that smoother2histval works (with an outfile)
// Note that an observation equation has been modified in order to have an aux var for lagged endo
var m P c e W R k d n l gy_obs gp_obs y dA;
varexo e_a e_m;
parameters alp bet gam mst rho psi del;
alp = 0.33;
bet = 0.99;
gam = 0.003;
mst = 1.011;
rho = 0.7;
psi = 0.787;
del = 0.02;
model;
dA = exp(gam+e_a);
log(m) = (1-rho)*log(mst) + rho*log(m(-1))+e_m;
-P/(c(+1)*P(+1)*m)+bet*P(+1)*(alp*exp(-alp*(gam+log(e(+1))))*k^(alp-1)*n(+1)^(1-alp)+(1-del)*exp(-(gam+log(e(+1)))))/(c(+2)*P(+2)*m(+1))=0;
W = l/n;
-(psi/(1-psi))*(c*P/(1-n))+l/n = 0;
R = P*(1-alp)*exp(-alp*(gam+e_a))*k(-1)^alp*n^(-alp)/W;
1/(c*P)-bet*P*(1-alp)*exp(-alp*(gam+e_a))*k(-1)^alp*n^(1-alp)/(m*l*c(+1)*P(+1)) = 0;
c+k = exp(-alp*(gam+e_a))*k(-1)^alp*n^(1-alp)+(1-del)*exp(-(gam+e_a))*k(-1);
P*c = m;
m-1+d = l;
e = exp(e_a);
y = k(-1)^alp*n^(1-alp)*exp(-alp*(gam+e_a(-1)));
gy_obs = dA*y/y(-2);
gp_obs = (P/P(-1))*m(-1)/dA;
end;
steady_state_model;
dA = exp(gam);
gst = 1/dA;
m = mst;
khst = ( (1-gst*bet*(1-del)) / (alp*gst^alp*bet) )^(1/(alp-1));
xist = ( ((khst*gst)^alp - (1-gst*(1-del))*khst)/mst )^(-1);
nust = psi*mst^2/( (1-alp)*(1-psi)*bet*gst^alp*khst^alp );
n = xist/(nust+xist);
P = xist + nust;
k = khst*n;
l = psi*mst*n/( (1-psi)*(1-n) );
c = mst/P;
d = l - mst + 1;
y = k^alp*n^(1-alp)*gst^alp;
R = mst/bet;
W = l/n;
ist = y-c;
q = 1 - d;
e = 1;
gp_obs = m/dA;
gy_obs = dA;
end;
shocks;
var e_a; stderr 0.014;
var e_m; stderr 0.005;
end;
steady;
check;
estimated_params;
alp, beta_pdf, 0.356, 0.02;
bet, beta_pdf, 0.993, 0.002;
gam, normal_pdf, 0.0085, 0.003;
mst, normal_pdf, 1.0002, 0.007;
rho, beta_pdf, 0.129, 0.223;
psi, beta_pdf, 0.65, 0.05;
del, beta_pdf, 0.01, 0.005;
stderr e_a, inv_gamma_pdf, 0.035449, inf;
stderr e_m, inv_gamma_pdf, 0.008862, inf;
end;
varobs gp_obs gy_obs;
options_.solve_tolf = 1e-12;
estimation(order=1,datafile=fsdat_simul,mh_replic=0,mh_nblocks=1,mh_jscale=0.8,smoother,consider_all_endogenous,forecast=5);
forecast_estimation=oo_.forecast;
smoother2histval;
forecast;
forecast_smoother2histval=oo_.forecast;
[forecast_smoother,info] = dyn_forecast(var_list_,M_,options_,oo_,'smoother');
if max(abs(struct2array(forecast_estimation.Mean)-struct2array(forecast_smoother2histval.Mean)))>1e-6
error('Forecasts do not match')
end
if max(abs(struct2array(forecast_estimation.Mean)-struct2array(forecast_smoother.Mean)))>1e-6
error('Forecasts do not match')
end
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